void monovoid()
{
byte[] ImageConv = new byte[0];
var imageData = NSData.FromArray(ImageConv);
CIImage flower = CIImage.FromCGImage(UIImage.LoadFromData(imageData).CGImage);
var sepia = new CISepiaTone()
{
Image = flower,
Intensity = 0.9f
};
CIContext ctx = CIContext.FromOptions(null);
var output = sepia.OutputImage;
var cgImage = ctx.CreateCGImage(output, output.Extent);
CGSize size = new CGSize(400, 400); //modify as necessary
UIGraphics.BeginImageContext(size);
CGRect rect = new CGRect(CGPoint.Empty, size);
UIImage.FromImage(cgImage).Draw(rect);
UIImage image = UIGraphics.GetImageFromCurrentImageContext();
//NSData jpegData = image.AsJPEG(1);
NSData jpegData = image.AsPNG();
UIGraphics.EndImageContext();
byte[] bt = jpegData.ToArray();
}
//public byte[] Sepia(Stream imageStream)
//{
// byte[] ImageConv = new byte[0];
// var imageData = NSData.FromStream(imageStream);
// CIImage flower = CIImage.FromCGImage(UIImage.LoadFromData(imageData).CGImage);
// //var flower = UIImage.LoadFromData(imageData);
// var sepia = new CISepiaTone()
// {
// Image = flower,
// Intensity = .8f
// };
// CIImage output = sepia.OutputImage;
// var context = CIContext.FromOptions(null);
// var cgimage = context.CreateCGImage(output, output.Extent);
// //-------------------Return
// CGSize size = new CGSize(100, 100); //modify as necessary
// UIGraphics.BeginImageContext(size);
// CGRect rect = new CGRect(CGPoint.Empty, size);
// UIImage.FromImage(cgimage).Draw(rect);
// UIImage image = UIGraphics.GetImageFromCurrentImageContext();
// NSData jpegData = image.AsJPEG();
// UIGraphics.EndImageContext();
// byte[] dataBytes = new byte[jpegData.Length];
// System.Runtime.InteropServices.Marshal.Copy(jpegData.Bytes, dataBytes, 0, Convert.ToInt32(jpegData.Length));
// return dataBytes;
//}
public byte[] Sepia(byte[] imageIos)
{
byte[] ImageConv = new byte[0];
var imageData = NSData.FromArray(imageIos);
CIImage ImageOriginal = CIImage.FromCGImage(UIImage.LoadFromData(imageData).CGImage);
var sepia = new CISepiaTone()
{
Image = ImageOriginal,
Intensity = 1.0f
};
CIContext ctx = CIContext.FromOptions(null);
var output = sepia.OutputImage;
var cgImage = ctx.CreateCGImage(output, output.Extent);
//---------
CGSize size = new CGSize(400, 400); //Tamaño que se desplegará la imagen
UIGraphics.BeginImageContext(size);
CGRect rect = new CGRect(CGPoint.Empty, size);
//UIImage.FromImage(flower).Draw(rect);
UIImage.FromImage(cgImage).Draw(rect);
UIImage image = UIGraphics.GetImageFromCurrentImageContext();
//NSData jpegData = image.AsJPEG(1);
NSData jpegData = image.AsPNG();
UIGraphics.EndImageContext();
byte[] iamgenEnSepia = jpegData.ToArray();
return(iamgenEnSepia);
}
void DarkenImage()
{
var img = image.Image;
var ciImage = new CIImage(img);
var hueAdjust = new CIHueAdjust(); // first filter
hueAdjust.Image = ciImage;
hueAdjust.Angle = 2.094f;
var sepia = new CISepiaTone(); // second filter
sepia.Image = hueAdjust.OutputImage; // output from last filter, input to this one
sepia.Intensity = 0.3f;
CIFilter color = new CIColorControls()
{ // third filter
Saturation = 2,
Brightness = 1,
Contrast = 3,
Image = sepia.OutputImage // output from last filter, input to this one
};
var output = color.OutputImage;
var context = CIContext.FromOptions(null);
// ONLY when CreateCGImage is called do all the effects get rendered
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
image.Image = ui;
}
public static UIImage ToSepia(UIImage source)
{
using (var filter = new CISepiaTone() { Intensity = 0.8f })
{
return ColorSpaceTransformation.ToFilter(source, filter);
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
NavigationItem.Title = "Apply Filter";
//NavigationController.NavigationBar.BackItem.Title = "cancel";
var saveButton = new UIBarButtonItem("Save",
UIBarButtonItemStyle.Done,
null);
var cancelButton = new UIBarButtonItem();
cancelButton.Title = "Cancel";
var set =
NavigationItem.RightBarButtonItem = saveButton;
NavigationItem.BackBarButtonItem = cancelButton;
//CGRect frame = new CGRect(15, 15, View.Frame.Width - 15, View.Frame.Height - 15);
int _xCoord = 5;
int _yCoord = 5;
int _buttonWidth = 70;
int _buttonHeight = 70;
int _gapBetweenButtons = 5;
//int
for (int i = 0; i < CIFilterNames.Length; i++)
{
_itemCount = i;
UIButton filterButton = new UIButton();
filterButton.Frame = new CoreGraphics.CGRect(View.Frame.Width - 20, _yCoord, _buttonWidth, _buttonHeight);
filterButton.Tag = _itemCount;
filterButton.TouchUpInside += (sender, e) => FilterButtonTapped(filterButton);
imageView = ResizeUIImage(UIImage.FromBundle("Image"), 350, 350);
CIContext ciContext = new CIContext(null);
CIImage coreImage = new CIImage((ResizeUIImage(imageView, 70, 70)));
var filter = new CISepiaTone();
filter.Image = coreImage;
UIImage imageForButton = new UIImage(filter.Image.CreateByFiltering(CIFilterNames[i]));
filterButton.SetBackgroundImage(imageForButton, UIControlState.Normal);
_yCoord += _buttonHeight + _gapBetweenButtons;
scrollview.AddSubview(filterButton);
}
scrollview.ContentSize = new CoreGraphics.CGSize(_buttonHeight * (float)_itemCount + 2, _xCoord);
}
CIImage Apply(CIImage input, ModifyFilter filter)
{
var f = new CISepiaTone()
{
Image = input,
Intensity = filter.Intensity
};
return(f.OutputImage);
}
public void FilterButtonTapped(UIButton button)
{
button = button as UIButton;
var filter = new CISepiaTone();
CIImage coreImage = new CIImage((ResizeUIImage(imageView, 500, 500)));
filter.Image = coreImage;
image.Image = new UIImage(filter.Image.CreateByFiltering(CIFilterNames[button.Tag]));
}
public static UIImage ToSepia(UIImage source)
{
using (var filter = new CISepiaTone()
{
Intensity = 0.8f
})
{
return(ColorSpaceTransformation.ToFilter(source, filter));
}
}
public CIImage SepiaTone()
{
var sepia = new CISepiaTone()
{
Image = flower,
Intensity = .8f
};
return(sepia.OutputImage);
}
public static UIImage ToSepia(UIImage source)
{
using (var effect = new CISepiaTone()
{
Image = source.CGImage
})
using (var output = effect.OutputImage)
using (var context = CIContext.FromOptions(null))
using (var cgimage = context.CreateCGImage(output, output.Extent))
{
return(UIImage.FromImage(cgimage));
}
}
public static NSImage ToSepia(NSImage source)
{
using (var inputImage = CIImage.FromCGImage(source.CGImage))
using (var filter = new CISepiaTone()
{
Image = inputImage
})
using (var resultImage = new NSCIImageRep(filter.OutputImage))
{
var nsImage = new NSImage(resultImage.Size);
nsImage.AddRepresentation(resultImage);
return(nsImage);
}
}
CIImage Apply(ModifyFilter modifyFilter, CIImage input, bool dirty)
{
if (modifyFilter == null || !modifyFilter.Active || !dirty)
{
return(null);
}
CIFilter filter = new CISepiaTone {
Image = input,
Intensity = modifyFilter.Intensity,
};
return(filter.OutputImage);
}
public static void ApplySepia(string imagePath, UIImageView imgview)
{
var uiimage = UIImage.FromFile (imagePath);
var ciimage = new CIImage (uiimage);
var sepia = new CISepiaTone();
sepia.Image = ciimage;
sepia.Intensity = 0.8f;
var output = sepia.OutputImage;
var context = CIContext.FromOptions(null);
var cgimage = context.CreateCGImage (output, output.Extent);
var ui = UIImage.FromImage (cgimage);
imgview.Image = ui;
}
/// <summary>
/// Purchaseable feature. This function can't be called until the
/// user has purchased the Sepia Filter in-app product.
/// </summary>
public static void ApplySepia(string imagePath, UIImageView imgview)
{
var uiimage = UIImage.FromFile(imagePath);
var ciimage = new CIImage(uiimage);
var sepia = new CISepiaTone();
sepia.Image = ciimage;
sepia.Intensity = 0.8f;
var output = sepia.OutputImage;
var context = CIContext.FromOptions(null);
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
imgview.Image = ui;
}
void DarkenImage()
{
var img = image.Image;
var ciImage = new CIImage(img);
var hueAdjust = new CIHueAdjust(); // first filter
hueAdjust.Image = ciImage;
hueAdjust.Angle = 2.094f;
var sepia = new CISepiaTone(); // second filter
sepia.Image = hueAdjust.OutputImage; // output from last filter, input to this one
sepia.Intensity = 0.3f;
CIFilter color = new CIColorControls()
{ // third filter
Saturation = 2,
Brightness = 1,
Contrast = 3,
Image = sepia.OutputImage // output from last filter, input to this one
};
var output = color.OutputImage;
var context = CIContext.FromOptions(null);
// ONLY when CreateCGImage is called do all the effects get rendered
var cgimage = context.CreateCGImage(output, output.Extent);
var ui = UIImage.FromImage(cgimage);
image.Image = ui;
}
CIImage Apply(ModifyFilter modifyFilter, CIImage input, bool dirty)
{
if (modifyFilter == null || !modifyFilter.Active || !dirty)
return null;
CIFilter filter = new CISepiaTone {
Image = input,
Intensity = modifyFilter.Intensity,
};
return filter.OutputImage;
}
public CIImage SepiaTone ()
{
var sepia = new CISepiaTone () {
Image = flower,
Intensity = .8f
};
return sepia.OutputImage;
}